Bullet



July 20, 1943. R. R. CLARK 2,324,678

BULLET Filed March 27, 1941 jgaz Iuumlor Patented July 20, 1943 UNlTEDSTATEE:

QFHQE 1 Claim.

This invention relates generally to new and useful improvements inbullets and has for one of its important objects to provide a device ofthis character comprising a plurality of pivotally mounted, expansiblewings which are normally in folded or retracted position during theflight of the projectile and which, upon impact of said projectile withan object, are caused to automatically swing to operative position.

Other objects of the invention are to provide a bullet of the characterdescribed which will be simple in construction, highly eficient andreliable and which may be produced at low cost.

The foregoing and other objects and advan tages of the invention willbecome apparent from a study of the following specification, taken inconnection with the accompanying drawing wherein like characters ofreference designate corresponding parts throughout the several views,and wherein:

Figure 1 is a view in vertical longitudinal section through a bulletconstructed in accordance with this invention.

Figure 2 is an elevational view of the projectile with the pivoted wingsin expanded or open position.

Figure 3 is a detail view in top plan of the removable chamber plug andthe elements mounted thereon.

Figure 4 is a cross sectional view, taken substantially on the line 44of Figure 1.

Referring now to the drawing in detail, it will be seen that theembodiment of the invention which has been illustrated comprises asuitable case I. An explosive charge 2 is provided in the rear portionof the case I. A conventional cap 3 is provided in the case I rearwardlyof the charge 2 for firing said charge.

Mounted in the case I and adapted to be eX- pelled therefrom by theexplosive charge 2 is a projectile which is designated generally at 4.The projectile 4 includes a nose 5 of suitable metal which protrudesforwardly from the case I. The nose 5 is provided With a reduced rearend portion 6 having mounted thereon a ring T of comparatively soft,compressible and distort able metal. The ring '5 has formed therein acircumferential groove or channel 8 for the reception of a suitablelubricant for the bore of the gun. The channel 8 is also adapted toreceive or accommodate the excess flow of metal when the ring I iscompressed and distorted from the impact when the nose 5 strikes anobject.

Mounted on the rear end portion of the ring I is a cylindrical chamber 9in the form of a tube of suitable metal. The rear end of the chamber 9is closed by a removable plug I0.

Mounted centrally in the nose 5 and projecting therefrom into thechamber 9 is a metallic stem or shank II. The stem I I is provided onits rear end with a head I2 which is adapted to eject the plug II] fromthe chamber 9.

Mounted on the plug It) in the chamber 9 is a substantially U-shapedconnector or bail IS. The bight portion of the bail I3 has an openingtherein which slidably accommodates the stem l I.

Also mounted on the plug If! in the chamber 9 is a pair of substantiallyU-shaped brackets Ill. Pivotally mounted on the brackets It are metallicwings I5. Coil springs I6 are provided in the chamber 9 for expandingthe wings I5. lhe coil springs I6 are normally compressed between thefolded wings I5 and bars or the like I! which are mounted on the legportions of the member I3.

In use, the projectile 4 is propelled from the gun in the usual mannerwhen the charge 2 in the case I is exploded. When the nose 5 strikes anobject said nose is mashed or flattened and the comparatively soft ringI is compressed and distorted by the impact. In this manner the stem l iis caused to move rearwardly for ejecting the plug I6 from the rear endof the chamber 9. When the free ends of the pivoted wings I5 clear therear end of the chamber 9 said wings are swung outwardly to openposition, as illustrated to advantage in Figure 2 of the drawing, andtear a large, jagged hole in the object struck as the bullet passestherethrough. The chamber 9 is provided with a frangible lining I8 ofasbestos or other suitable fire resisting material.

t is believed that the many advantages of a bullet constructed inaccordance with the present invention will be readily understood andalthough a preferred embod ment of the device is as illustrated anddescribed, it is to be understood that changes in the details ofconstruction and in the combination and arrangement of parts may beresorted to which will fall within the scope f the invention as claimed.

What is claimed is:

A bullet of the class described comprising a nose, said nose comprisinga reduced rear end portion, a comparatively soft compressible,distortable ring mounted on said reduced end portion of the nose, saidring having a circumferential groove therein, a tubular chamber mountedon the ring and projecting rearwardly therefrom, a removable plug in therear end portion of said chamber. a plurality of expansible wingspivotally mounted on the plug and engageable in the chamber forretention thereby in folded position, a stem mounted longitudinally inthe nose and projecting rearwardly therefrom into the chamber andengaged with the plug for ejecting said plug from the chamber, said stembeing operable upon compression and distortion of the ring when the nosestrikes an object, a substantially U- shaped connector on the plugslidable on the stem, 3, head on one end of the stem for retaining theconnector thereon, and springs in the chamber engaged with the Wings foropening said 5 wings when the plug is ejected from the chamber.

ROBERT R. CLARK.

